USB-Powered Coated Blade Spray Ion Source for On-Site Testing Using Transportable Mass Spectrometry.

ABSTRACT: On-site testing in food analysis using mass spectrometry (MS) requires miniaturization of vacuum systems, mass analyzers, sample cleanup, and ionization sources. In this study, a simple coated blade spray (CBS) ion source was developed that enables high voltage generation on the blade by ubiquitous certified (micro-)USB On-The-Go devices like smartphones, tablets, and power banks. CBS is capable of performing both analyte enrichment by solid-phase microextraction (SPME) material coated on the metal substrate and direct-spray ionization. The USB-CBS device was used on two different MS systems, a transportable single-quadrupole and a benchtop triple-quadrupole tandem MS. Various characteristics of the USB-CBS device, including high voltage generation and angular positioning, were studied. Th

SUBMITTER: Jager J 

PROVIDER: S-EPMC7659368 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature